/Engine/Source/Runtime/CoreUObject/Public/UObject/Linker.h
Gets the class name for the specified index in the export map.
Class name of the export at specified PackageIndex if the PackageIndex represents an export. Otherwise NAME_None
[FName](API\Runtime\Core\UObject\FName) GetExportClassName ( [FPackageIndex](API\Runtime\CoreUObject\UObject\FPackageIndex) PackageIndex )